package Thread;

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.FutureTask;

public class demo2 {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        Callable<Integer>callable = new Callable<Integer>() {
        @Override
            public Integer call() throws Exception{
            int sum = 0;
            for(int i =1;i<=1000;i++){
                sum+=i;
            }
            return sum;
        }
        };
        FutureTask<Integer> futureTask =new FutureTask<>(callable);
        Thread t = new Thread(futureTask);
        t.start();
        Integer result= futureTask.get();
        System.out.println(result);

    }
}
